Invention Grant
- Patent Title: Touch driver, touch display device, and method of driving touch display device
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Application No.: US17113601Application Date: 2020-12-07
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Publication No.: US11372493B2Publication Date: 2022-06-28
- Inventor: Jaehun Jun
- Applicant: LG DISPLAY CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG DISPLAY CO., LTD.
- Current Assignee: LG DISPLAY CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2019-0174317 20191224
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G09G3/36 ; G06F3/044 ; G06V40/60 ; G06V40/13 ; G06V40/12

Abstract:
Provided is a touch display device that can sense a touch input of a finger with the touch display device, recognize a finger touch position, specify a fingerprint sensing area, and sense a fingerprint in the fingerprint sensing area. Provided is also a touch display device that does not need a particularly fingerprint sensing line by performing fingerprint sensing using data lines of the touch display device and that can sense a fingerprint without decreasing a fingerprint sensing performance by minimizing a parasitic capacitance which can be generated in data lines, gate lines, touch electrodes, or the like at the time of sensing a fingerprint.
Public/Granted literature
- US20210191554A1 TOUCH DRIVER, TOUCH DISPLAY DEVICE, AND METHOD OF DRIVING TOUCH DISPLAY DEVICE Public/Granted day:2021-06-24
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